Update README to include nbstripout (#63)

* /releases

* Linting

* Encoding I think

README.md

@@ -38,6 +38,8 @@ This image is built on Ubuntu 24.04 LTS and includes the following software:
 
 - [Microsoft ODBC driver for SQL Server](https://learn.microsoft.com/en-us/sql/connect/odbc/microsoft-odbc-driver-for-sql-server)
 
+- [nbstripout](https://github.com/kynan/nbstripout)
+
 ## Running Locally
 
 ### Build
@@ -234,6 +236,10 @@ apt-cache policy msodbcsql18
 apt-cache policy mssql-tools18
 ```
 
+### nbstripout
+
+Release for nbstripout are maintained on [GitHub](https://github.com/kynan/nbstripout/releases).
+
 ## Maintenance
 
 Maintenance of this component is scheduled in this [workflow](https://github.com/ministryofjustice/analytical-platform/blob/main/.github/workflows/schedule-issue-cloud-development-environment-base.yml), which generates a maintenance ticket as per this [example](https://github.com/ministryofjustice/analytical-platform/issues/5905).